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Experimental Research on the Hydration Heat Temperature Field of Hollow Concrete Piers

Auteur(s):



Médium: article de revue
Langue(s): anglais
Publié dans: The Open Construction and Building Technology Journal, , n. 1, v. 8
Page(s): 482-487
DOI: 10.2174/1874836801408010482
Abstrait:

Measuring points were observed continuously to reveal the hydration heat temperature distribution of hollow concrete bridge pier. The results showed that as the thickness of the pier increased, the central temperature of the pier increased significantly due to hydration and the heat was difficult to be dissipated. The hydration temperature accounted for up to 70% of the maximum temperature rise during 20 h and reached the maximum temperature at 24 h after pouring the concrete. There was a jump value between the central temperature and surface temperature in a short period after removing the framework. The jumping was the most dangerous moment for the cracking of pier surfaces. Therefore, the formwork removal time has to be determined prudently and corresponding measures have to be conducted to reduce the possibility of pier surface cracking.

Copyright: © 2014 Jun Peng, Chunping Tang, Liangliang Zhang, Ayad Thabit Saeed
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

  • Informations
    sur cette fiche
  • Reference-ID
    10384224
  • Publié(e) le:
    23.11.2019
  • Modifié(e) le:
    02.06.2021